caroul2019年GRE考试阅读理解测试题及答案
guojiyinbiaoMany rearchers attribute the large number of physiological and behavioral similarities between birds and mammals, which have parate evolutionary histories, to endothermy (a thermoregulatory strategy whereby warm body temperature is maintained through internal heat sources). However, Farmer argues that parental care rather than endothermy is the key to understanding the similarities between mammals and birds. According to Farmer, while endothermy provides an explanation for a few similarities, such as the prence of body insulation, endothermy is just one characteristic among many related to parental care. The two purported advantages of endothermy that have been most frequently cited by rearchers are an expanded range of inhabitable environments and the ability to sustain vigorous exerci. But metabolism has to increa substantially (at great energy cost) therefore conferring any significant thermoregulatory advantage in terms of the former, and there is no causal biological linkage to explain why endothermy would be esntial to sustain exerci. Farmer argues instead that endothermy evolved as a means to control incubation temperature and that the ability to sustain exerci evolved parately, as a means to improve a parent’s ability to forage and provision its young.
1. The primary purpo of the passage is to
A. prent a scientific theory that challenges a widely held theory
B. summarize the basis for a large body of scientific rearch
C. defend an established scientific theory in light of recent criticism
emul
D. express skepticism about the results obtained by a particular rearcher
E. compare the results of two particular scientific studiesyin dao
2. Which of the following best characterizes the organization of the passage as a whole?
A. A position is noted, an alternative to that position is introduced, and then veral points in support of the alternative are discusd.
B. A theory is discusd, an inconsistency within that theory is illustrated, and then a recommendation is made for further inquiry.
C. Certain rearch results are described, the significance of tho results is explained, and then a novel interpretation of tho results is summarized.
D. A question is pod, a possible answer to that question is suggested, and then evidence is provided to corroborate that answer.
E. A debate is outlined, contrasting viewpoints within the debate are discusd, and then one viewpoint is demonstrated to be correct.
出席英语
3. According to the passage, Farmer concedes that endothermy provides an explanation for which of the following features shared by birds and mammals?
when i was 10 years oldA. The ability to forage
B. The ability to sustain exerci
kicker
C. The instinct to care for offspring
最好听的英文名D. Flexibility in habitat usage
E. Body insulation
答案：low shoulder
滞纳金英文A A E
